Density, coverage and biomass of seagrass ecosystem in the Lobam Island, Bintan Regency - Indonesia

Seagrass ecosystem is a sea plant that can store carbon in the form of biomass and in sediments known as blue carbon. This research conducted in around coastal waters of Lobam island, Seri Kuala Lobam sub-district, Bintan regency that has seagrass community type Thalassia hemprichii and Enhalus acoroides which has an important role as a carbon sink. This research aims to determine differences of density, coverage and differences in biomass based on a seagrass tissue at the Above ground (leaf Abg.) and Below ground (rhizoma and root Blg.) of each station and the relationship between the density towards seagrass biomass. The research results show that the seagrass density in station 2 was higher than in station 1. While the difference in the seagrass biomass there is in the section of Abg (leaf) and Blg (rhizoma and root) in station 1 and conversely there is no significant difference in station 2.